How do I change Premier subscription plans

Because the 6 month and 1-year plans are discounted, you may wish to upgrade from your 3 month subscription. The best way to do this is to wait until your current subscription is about to expire, and then sign-up for the plan that you want. After you have signed up for the plan you want, then cancel your previous subscription. Doing it this way guarantees that you experience no interruption in service.